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  • Participer à sa traduction

    10 avril 2011

    Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
    Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
    Actuellement MediaSPIP n’est disponible qu’en français et (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

  • De l’upload à la vidéo finale [version standalone]

    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

Sur d’autres sites (3826)

  • Output file not specified [closed]

    16 mai 2024, par Rich Madrid

    I have been messing around with ffmpeg working on basic mkv to mp4 conversions the last couple of days on my Mac and Windows computers. Mac was easier buy my windows desktop has a much faster OS so I wanted to do some conversions on it tonight. Got ffmpeg installed and working.

    


    After having some issues with the command prompt not finding the directory, I solved that with the following basic code to convert an mkv file to an mp4 for me :

    


    ffmpeg -i "C:\Users\Computer\videos\decade.mkv" "C:\Users\Computer\Videos\RJ videos\Complete\decade.mp4"


    


    I moved on to wanting to scale up an mkv to 1080p and use a yadif filter. I couldn’t find an adequate way to do this so I used a portion of the command that worked on my Mac last night, and stuffed it into the command for windows and I got an error code “at least one output file must be specified” after using the following command :

    


    ffmpeg -i "C:\Users\Computer\videos\decade.mkv" -vf "yadif=1,scale=1440x1080:flags=lanczos,setsar=1" -c:v libx264 -crf 21
-c:a aac -b:a 128k -ar 48k "C:\Users\Computer\Videos\RJ videos\Complete\decade.mp4"


    


    What am I doing wrong ?

    


  • How to clone last frame when using overlay in ffmpeg ? [closed]

    6 mai 2024, par mikezang

    I use this code to slide previous and next pages up, this is no problems, can I remove png file 1970~1979-last.png and use the last frame of video file 1970~1979.mp4 to instead it ?

    


    script-01.txt

    


    color=white:864x504[c];
[0:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504:-1:-1,setsar=1[s0];
[1:v]scale=864:504:force_original_aspect_ratio=decrease,pad=864:504:-1:-1,setsar=1[s1];
[c][s0]overlay=y=0-h*t[c];
[c][s1]overlay=y='if(between(t,0,18),max(H-h*t,0),max(0-h*(t-18),0-H))'[v],
[v]tpad=stop_mode=clone:stop_duration=10[s2];
[s2]drawtext=fontfile='/WINDOWS/Fonts/Arial.ttf':text='%{eif\:18-t\:d}':
box=1:boxborderw=10:boxcolor=orange@0.4:
x=w-tw-10:y=10:fontsize=24:fontcolor=red:enable='between(t,8,18)';


    


    script-01.bat

    


    ffmpeg -hide_banner -loglevel fatal ^
    -loop 1 -i "C:\myimages\1970~1979-last.png" ^
    -i "C:\myvideos\years\1980~1989.mp4" ^
    -filter_complex_script script-01.txt ^
    -t 18 -y v01.mp4


    


    I got it what I only need video files and capture last frame by pipe line to next step, so that the last frame image never neede ! Though the first slide has little problem when countdown finished !

    


    script-01.bat

    


    ffmpeg -hide_banner -loglevel fatal ^
    -sseof -0.03 -i "C:\myvideos\years\1970~1979.mp4" ^
    -vframes 1 -c:v png -f image2pipe - | ffmpeg  ^
    -hide_banner -loglevel fatal -i - ^
    -i "C:\myvideos\years\1980~1989.mp4" ^
    -filter_complex_script script-01.txt ^
    -t 18 -y v01.mp4


    


  • How to change resolution without compromising video quality using ffmpeg ?

    20 mars 2024, par blake banker

    I'm trying to develop a simple video transcoding system.
When you upload a video,
After extracting the video and audio separately,
I want to encode them at 360, 720, and 1080p resolutions respectively and then merge them to create three final mp4 files.
At this time, I have two questions.

    


      

    1. Is there a big difference between encoding the video and audio separately in the original video file and encoding the original video file as is ? In a related book, it is said that a system is created by separating video and audio, and I am curious as to why.

      


    2. 


    3. I want to change the resolution without compromising the original image quality. At this time, the resolution of the uploaded file can be known at the time of upload. As a test, I created files according to each resolution, and found that the image quality was damaged. If I want to change only the resolution while keeping the original image quality, I would like to know how to adjust each ffmpeg option. We plan to change it to 360, 720, and 1080p.

      


    4.